ABB +N5600 Firmware Instructions page 456

456 Parameters
No. Name/Value
90.43 Motor gear
numerator
-2147483648 ...
2147483647
90.44 Motor gear
denominator
-2147483648 ...
2147483647
90.45 Motor feedback
fault
Fault
Warning
90.46 Force open loop
No
Yes
90.48 Motor position axis
mode
Linear
Rollover
90.49 Motor position
resolution
0...31
90.51 Load feedback
selection
None
Description
Parameters 90.43 and 90.44
the motor speed feedback and motor control. The gear is
used to correct a difference between the motor and encoder
speeds for example if the encoder is not mounted directly on
the motor shaft.
90.43 Motor gear numerator
90.44 Motor gear denominator
Motor gear numerator.
See parameter 90.43 Motor gear
Motor gear denominator.
Selects how the drive reacts to loss of measured motor
feedback.
Drive trips on a 7301 Motor speed feedback
fault.
Drive generates an A798 Encoder option comm
Motor speed feedback or
continues operation using estimated feedbacks.
Note: Before using this setting, test the stability of the speed
control loop with estimated feedback by running the drive on
estimated feedback (see
Forces the DTC motor model to use estimated motor speed
as feedback. This parameter can be activated when the
encoder data is obviously unreliable because of slippage, for
example.
Note: This parameter only affects the selection of feedback
for the motor model, not for the speed controller.
The motor model uses the feedback selected by
feedback selection.
The motor model uses the calculated speed estimate
(regardless of the setting of
which in this case only selects the source of feedback for the
speed controller).
Selects the axis type for motor position measurement.
Linear.
The value is between 0 and 1 revolutions, and rolls over at
360 degrees.
Defines how many bits are used for motor position count
within one revolution. For example, with the setting of 24, the
position value is multiplied by 16777216 for display in
parameter 90.06 Motor position scaled
Motor position resolution.
Selects the source of load speed and position feedbacks
used in control.
No load feedback selected.
define a gear function between
Motor speed
=
Encoder speed
numerator.
or 7381 Encoder
loss,
A7E1 Encoder warning and
90.41 Motor feedback selection).
90.41 Motor
90.41 Motor feedback
(or for fieldbus).
Def/FbEq16
1
-
1
-
Fault
0
A7B0 1
No
0
1
selection,
Rollover
0
1
24
-
None
0